.WHEN RUSSIA occupied in February 2022 Ukraine barely had a navy. The defenders scuttled their one frigate to avoid Russia coming from seizing it. Two years later on Ukraine is actually battling to hold back a Russian offensive ashore-- but it is actually succeeding the battle Sea and has cracked the Russian clog of its own grain ships. Its own success have often depended on rapid technical technology: intermittent navy relies upon crewed ships to combat, but Ukraine has actually built a line of drone watercrafts, or uncrewed area automobiles (USVs). Just how are they molding the battle at sea?